Alibaba.com offers 3,047 12v waterproof switching power supply products. About 87% of these are switching power supply, 5% are ac/dc adapters, and 1% are laptop adapter. A wide variety of 12v waterproof switching power supply options are available to you, such as single, dual, and dc. You can also choose from 1 - 50w, 301 - 400w, and 201 - 300w. As well as from 110v, 380v, and 220v. And whether 12v waterproof switching power supply is plug in, or desktop. There are 3,040 12v waterproof switching power supply suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Taiwan, and South Korea, which supply 94%, 5%, and 1% of 12v waterproof switching power supply respectively. 2v waterproof switching power supply products are most popular in North America, Eastern Europe, and Western Europe. You can ensure product safety by selecting from certified suppliers, including 535 with ISO9001, 505 with Other, and 8 with ISO14001 certification.